Meiotic behavior of a supernumerary chromosome in Magnaporthe oryzae

被引：24

作者：

Chuma, I

Tosa, Y ^{[1
]}

Taga, M

Nakayashiki, H

Mayama, S

机构：

[1] Kobe Univ, Fac Agr, Kobe, Hyogo 6578501, Japan

[2] Okayama Univ, Fac Sci, Dept Biol, Okayama 7008530, Japan

来源：

CURRENT GENETICS | 2003年 / 43卷 / 03期

关键词：

supernumerary chromosome; minichromosome; ectopic sister chromatid; recombination;

D O I：

10.1007/s00294-003-0390-7

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

A 1.2-Mb DNA band from an isolate of Magnaporthe oryzae was detected in a pulsed-field gel. A chromosomal entity corresponding to this band was observed at the mitotic metaphase stage. This minichromosome, carrying many transposable elements and two telomeres, was transmitted to ascosporic F, cultures in a non-Mendelian manner with frequent changes in its size and number. Segregation analysis with RFLP markers indicated that the minichromosome underwent structural rearrangements, such as deletion and duplication, not only during meiosis but also after meiosis. An ectopic sister chromatid recombination may cause the size variation of the minichromosomes.

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收藏

页码：191 / 198

页数：8

相关论文

共 38 条

[11] 2 CLASSES OF CHROMOSOME-SIZED MOLECULES ARE PRESENT IN BREMIA-LACTUCAE [J].

FRANCIS, DM ;

MICHELMORE, RW .

EXPERIMENTAL MYCOLOGY, 1993, 17 (04) :284-300

[12] HOST SPECIES-SPECIFIC CONSERVATION OF A FAMILY OF REPEATED DNA-SEQUENCES IN THE GENOME OF A FUNGAL PLANT PATHOGEN [J].

HAMER, JE ;

FARRALL, L ;

ORBACH, MJ ;

VALENT, B ;

CHUMLEY, FG .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1989, 86 (24) :9981-9985

[13] Organisation and molecular analysis of repeated DNA sequences in the rice blast fungus Magnaporthe grisea [J].

Kachroo, P ;

Ahuja, M ;

Leong, SA ;

Chattoo, BB .

CURRENT GENETICS, 1997, 31 (04) :361-369

[14] MG-SINE - A SHORT INTERSPERSED NUCLEAR-ELEMENT FROM THE RICE BLAST FUNGUS, MAGNAPORTHE-GRISEA [J].

KACHROO, P ;

LEONG, SA ;

CHATTOO, BB .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1995, 92 (24) :11125-11129

[15] POT2, AN INVERTED REPEAT TRANSPOSON FROM THE RICE BLAST FUNGUS MAGNAPORTHE-GRISEA [J].

KACHROO, P ;

LEONG, SA ;

CHATTOO, BB .

MOLECULAR & GENERAL GENETICS, 1994, 245 (03) :339-348

[16] Pathogenicity, Mating Ability and DNA Restriction Fragment Length Polymorphisms of Pyricularia Populations Isolated from Gramineae, Bambusideae and Zingiberaceae Plants [J].

Hajime KATO ;

Masaaki YAMAMOTO ;

Tomona YAMAGUCHI-OZAKI ;

Hiroyuki KADOUCHI ;

Yutaka IWAMOTO ;

Hitoshi NAKAYASHIKI ;

Yukio TOSA ;

Shigeyuki MAYAMA ;

Naoki MORI .

Journal of General Plant Pathology, 2000, 66 (1) :30-47

[17] NRS1, A REPETITIVE ELEMENT LINKED TO PISATIN DEMETHYLASE GENES ON A DISPENSABLE CHROMOSOME OF NECTRIA-HAEMATOCOCCA [J].

KIM, HG ;

MEINHARDT, LW ;

BENNY, U ;

KISTLER, HC .

MOLECULAR PLANT-MICROBE INTERACTIONS, 1995, 8 (04) :524-531

[18] GENETIC-CONTROL OF INTRACHROMOSOMAL RECOMBINATION [J].

KLEIN, HL .

BIOESSAYS, 1995, 17 (02) :147-159

[19] Meiotic behaviour of the minichromosome in the phytopathogenic ascomycete Leptosphaeria maculans [J].

Leclair, S ;

AnsanMelayah, D ;

Rouxel, T ;

Balesdent, MH .

CURRENT GENETICS, 1996, 30 (06) :541-548

[20] A FUNGAL GENE FOR ANTIBIOTIC-RESISTANCE ON A DISPENSABLE (B) CHROMOSOME [J].

MIAO, VP ;

COVERT, SF ;

VANETTEN, HD .

SCIENCE, 1991, 254 (5039) :1773-1776

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